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Flu season is here in the northern hemisphere. While there’s still no epidemic of “novel H1N1 flu” or “swine flu” as has been feared since last year, medical centers across the United States are reporting widely varying levels of flu infections. To date, sunny warm areas like Southern California have few infections, cold and cloudy areas like the Upper Midwest have many more. You can find maps showing the US CDC’s attempt at showing levels of infection outbreak across the United States at 2009 H1N1 Flu U.S. Situation Update. Unfortunately, these maps are of poor quality as they really don’t show much of any useful data because the CDC considers most areas to have “widespread” flu outbreaks at this time their maps don’t distinguish sufficiently between the level of flu activity in different areas.Read more…